ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,347, issued on March 31, was assigned to Nippon Chemi-Con Corp. (Tokyo).

"Electrolytic capacitor including an enlarged surface layer and a dielectric oxide film formed on the enlarged surface layer" was invented by Kazuhiro Nagahara (Tokyo), Tatsuru Hatae (Kanagawa, Japan), Kazuya Koseki (Kanagawa, Japan), Atsushi Yoshida (Fukushima, Japan), Makoto Tominaga (Fukushima, Japan) and Riho Gumilar Maeda (Fukushima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides an electrolytic capacitor for middle or high voltage application of 160 V or more, which can suppress the total amount of gas generated inside the electrolyt...